Semiconductor quantum wells
Quantum cascade lasers

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E6470 V1 Article

Semiconductor quantum wells
Quantum cascade lasers

Authors : Angela VASANELLI, Carlo SIRTORI

Publication date: August 10, 2019 | Lire en français

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1. Semiconductor quantum wells

The basic building block of the QCL is the semiconductor quantum well.

A semiconductor quantum well is an artificial material consisting of a semiconductor with a low bandgap energy, sandwiched between two semiconductor layers with the same lattice parameter and a higher bandgap energy . Semiconductor quantum wells are produced by molecular jet epitaxy or organometallic vapor phase...

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